RE cAudioManager::UpdateReflections

GTAmodding · Nov 5, 2019 · 5e771f17372919724e00dc12895dc9a8f3cbf79a · 5e771f1
1 parent 11d071a
commit 5e771f17372919724e00dc12895dc9a8f3cbf79a
Unified Split

Showing with 89 additions and 18 deletions.

+67 −2 src/audio/AudioManager.cpp

+1 −1 src/audio/AudioManager.h

+21 −15 src/math/Vector.h
diff --git a/src/audio/AudioManager.cpp b/src/audio/AudioManager.cpp
@@ -9289,11 +9289,75 @@ cAudioManager::UpdateGasPedalAudio(CAutomobile *automobile)
 	automobile->m_fGasPedalAudio = newGasPedalAudio;
 }
 
-WRAPPER
 void
 cAudioManager::UpdateReflections()
 {
-	EAXJMP(0x57B470);
+	const CVector &camPos = TheCamera.GetPosition();
+	CColPoint colpoint;
+	CEntity *ent;
+
+	if(m_nTimeOfRecentCrime & 7) {
+		if(((uint8)m_nTimeOfRecentCrime + 1) & 7) {
+			if(((uint8)m_nTimeOfRecentCrime + 2) & 7) {
+				if(((uint8)m_nTimeOfRecentCrime + 3) & 7) {
+					if(!(((uint8)m_nTimeOfRecentCrime + 4) & 7)) {
+						m_avecReflectionsPos[4] = camPos;
+						m_avecReflectionsPos[4].z += 50.f;
+						if(CWorld::ProcessVerticalLine(
+						       camPos, m_avecReflectionsPos[4].z, colpoint,
+						       ent, true, false, false, false, true, false,
+						       false)) {
+							m_afReflectionsDistances[4] =
+							    colpoint.point.z - camPos.z;
+						} else {
+							m_afReflectionsDistances[4] = 50.0f;
+						}
+					}
+				} else {
+					m_avecReflectionsPos[3] = camPos;
+					m_avecReflectionsPos[3].x += 50.f;
+					if(CWorld::ProcessLineOfSight(
+					       camPos, m_avecReflectionsPos[3], colpoint, ent, true,
+					       false, false, true, false, true, true)) {
+						m_afReflectionsDistances[3] =
+						    Distance(camPos, colpoint.point);
+					} else {
+						m_afReflectionsDistances[3] = 50.0f;
+					}
+				}
+			} else {
+				m_avecReflectionsPos[2] = camPos;
+				m_avecReflectionsPos[2].x -= 50.f;
+				if(CWorld::ProcessLineOfSight(camPos, m_avecReflectionsPos[2],
+				                              colpoint, ent, true, false, false,
+				                              true, false, true, true)) {
+					m_afReflectionsDistances[2] =
+					    Distance(camPos, colpoint.point);
+				} else {
+					m_afReflectionsDistances[2] = 50.0f;
+				}
+			}
+		} else {
+			m_avecReflectionsPos[1] = camPos;
+			m_avecReflectionsPos[1].y -= 50.f;
+			if(CWorld::ProcessLineOfSight(camPos, m_avecReflectionsPos[1], colpoint,
+			                              ent, true, false, false, true, false, true,
+			                              true)) {
+				m_afReflectionsDistances[1] = Distance(camPos, colpoint.point);
+			} else {
+				m_afReflectionsDistances[1] = 50.0f;
+			}
+		}
+	} else {
+		m_avecReflectionsPos[0] = camPos;
+		m_avecReflectionsPos[0].y += 50.f;
+		if(CWorld::ProcessLineOfSight(camPos, m_avecReflectionsPos[0], colpoint, ent, true,
+		                              false, false, true, false, true, true)) {
+			m_afReflectionsDistances[0] = Distance(camPos, colpoint.point);
+		} else {
+			m_afReflectionsDistances[0] = 50.0f;
+		}
+	}
 }
 
 bool
@@ -9570,6 +9634,7 @@ InjectHook(0x57FCC0, &cAudioManager::SetupSuspectLastSeenReport, PATCH_JUMP);
 InjectHook(0x57A150, &cAudioManager::Terminate, PATCH_JUMP);
 InjectHook(0x57AC60, &cAudioManager::TranslateEntity, PATCH_JUMP);
 InjectHook(0x56AC80, &cAudioManager::UpdateGasPedalAudio, PATCH_JUMP);
+InjectHook(0x57B470, &cAudioManager::UpdateReflections, PATCH_JUMP);
 InjectHook(0x56C600, &cAudioManager::UsesReverseWarning, PATCH_JUMP);
 InjectHook(0x56C3C0, &cAudioManager::UsesSiren, PATCH_JUMP);
 InjectHook(0x56C3F0, &cAudioManager::UsesSirenSwitching, PATCH_JUMP);

diff --git a/src/audio/AudioManager.h b/src/audio/AudioManager.h
@@ -689,7 +689,7 @@ class cAudioManager
 	void TranslateEntity(CVector *v1, CVector *v2) const;
 
 	void UpdateGasPedalAudio(CAutomobile *automobile);
-	void UpdateReflections(); // todo
+	void UpdateReflections();
 	bool UsesReverseWarning(int32 model) const;
 	bool UsesSiren(int32 model) const;
 	bool UsesSirenSwitching(int32 model) const;

diff --git a/src/math/Vector.h b/src/math/Vector.h
@@ -78,21 +78,6 @@ class CVector
 	bool IsZero(void) { return x == 0.0f && y == 0.0f && z == 0.0f; }
 };
 
-inline float
-DotProduct(const CVector &v1, const CVector &v2)
-{
-	return v1.x*v2.x + v1.y*v2.y + v1.z*v2.z;
-}
-
-inline CVector
-CrossProduct(const CVector &v1, const CVector &v2)
-{
-	return CVector(
-		v1.y*v2.z - v1.z*v2.y,
-		v1.z*v2.x - v1.x*v2.z,
-		v1.x*v2.y - v1.y*v2.x);
-}
-
 inline CVector operator+(const CVector &left, const CVector &right)
 {
 	return CVector(left.x + right.x, left.y + right.y, left.z + right.z);
@@ -117,3 +102,24 @@ inline CVector operator/(const CVector &left, float right)
 {
 	return CVector(left.x / right, left.y / right, left.z / right);
 }
+
+inline float
+DotProduct(const CVector &v1, const CVector &v2)
+{
+	return v1.x*v2.x + v1.y*v2.y + v1.z*v2.z;
+}
+
+inline CVector
+CrossProduct(const CVector &v1, const CVector &v2)
+{
+	return CVector(
+		v1.y*v2.z - v1.z*v2.y,
+		v1.z*v2.x - v1.x*v2.z,
+		v1.x*v2.y - v1.y*v2.x);
+}
+
+inline float
+Distance(const CVector &v1, const CVector &v2)
+{
+	return (v2 - v1).Magnitude();
+}